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arXiv 1909.04062hep-thhep-phnucl-th
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M理论强耦合下QCD迹Anomaly

The QCD Trace Anomaly at Strong Coupling from M-Theory

Aalok Misra, Charles Gale

摘要:

在这个简短的说明中,我们解决的问题,获得温度依赖的QCD共形异常从自上而下的全息对偶符合最近的晶格结果都,T <Tc and T>Tc。作为全息对偶,我们使用在arXiv:1306.4339中获得的SYZ IIA型镜的M理论提升,在arXiv:0902.1540的大N热QCD的IIB型全息对偶的有限规范/弦耦合(作为“MQGP”极限的一部分)。我们还表明,当用视界半径表示时,通过调整(小)欧阳嵌入参数和爆破S^2的半径,可以得到在重子化学势为零时霍金-佩奇相变的QCD退禁闭温度Tc = 150 MeV,这与重夸克极限下的格点量子色动力学一致。

英文摘要:

In this short note we address the issue of obtaining the temperature dependence of the QCD conformal anomaly from a top-down holographic dual consistent with very recent lattice results for both, T<Tc and T>Tc. As the holographic dual, we use the M-theory uplift of the SYZ type IIA mirror obtained in arXiv:1306.4339 at finite gauge/string coupling (as part of the 'MQGP' limit) of the type IIB holographic dual of large-N thermal QCD of arXiv:0902.1540. We also show that after a tuning of the (small) Ouyang embedding parameter and radius of a blown-up S^2 when expressed in terms of the horizon radius, a QCD deconfinement temperature Tc = 150 MeV from a Hawking-Page phase transition at vanishing baryon chemical potential, consistent with lattice QCD in the heavy-quark limit, can be obtained.

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